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                                <h1 id="&#x8FDB;&#x7A0B;&#x865A;&#x62DF;&#x5185;&#x5B58;&#x7BA1;&#x7406;&#x4E4B;&#x865A;&#x62DF;&#x7A7A;&#x95F4;">&#x8FDB;&#x7A0B;&#x865A;&#x62DF;&#x5185;&#x5B58;&#x7BA1;&#x7406;&#x4E4B;&#x865A;&#x62DF;&#x7A7A;&#x95F4;</h1>
<h2 id="&#x4E00;&#x3001;&#x63CF;&#x8FF0;">&#x4E00;&#x3001;&#x63CF;&#x8FF0;</h2>
<p>&#x8FDB;&#x7A0B;&#x5728;&#x542F;&#x52A8;&#x524D;&#xFF0C;&#x9700;&#x8981;&#x52A0;&#x8F7D;&#x5BF9;&#x5E94;&#x7684;&#x4EE3;&#x7801;&#x3001;&#x6570;&#x636E;&#x5230;&#x5185;&#x5B58;&#x4E2D;&#xFF0C;&#x7136;&#x540E;&#x624D;&#x5F00;&#x59CB;&#x6267;&#x884C;&#x3002;
&#x5728;&#x8FDB;&#x7A0B;&#x7684;&#x8FD0;&#x884C;&#x8FC7;&#x7A0B;&#x4E2D;&#x4E5F;&#x4F1A;&#x6D89;&#x53CA;&#x5230;&#x5806;&#x7684;&#x5206;&#x914D;&#xFF0C;&#x6808;&#x7684;&#x6269;&#x5C55;&#x7B49;&#x3002;
&#x5BF9;&#x8FDB;&#x7A0B;&#x7684;&#x5185;&#x5B58;&#x7BA1;&#x7406;&#xFF0C;&#x662F;&#x5BF9;&#x5B83;&#x7684;&#x865A;&#x62DF;&#x5730;&#x5740;&#x8FDB;&#x884C;&#x7BA1;&#x7406;&#x3002;&#x7531;&#x4E8E;&#x4F1A;&#x6709;&#x591A;&#x4E2A;&#x8FDB;&#x7A0B;&#x7684;&#x5B58;&#x5728;&#xFF0C;&#x6240;&#x4EE5;&#x4F1A;&#x5BF9;&#x6BCF;&#x4E2A;&#x8FDB;&#x7A0B;&#x7684;&#x865A;&#x62DF;&#x5730;&#x5740;
&#x8FDB;&#x884C;&#x72EC;&#x7ACB;&#x7684;&#x7BA1;&#x7406;&#xFF0C;&#x4E8E;&#x662F;&#x8FDB;&#x7A0B;&#x5730;&#x5740;&#x7A7A;&#x95F4;&#x5C31;&#x51FA;&#x73B0;&#x4E86;&#x3002;</p>
<p>&#x8FDB;&#x7A0B;&#x5730;&#x5740;&#x7A7A;&#x95F4;(<code>vmspace</code>)&#x5C31;&#x662F;&#x7528;&#x6765;&#x7BA1;&#x7406;&#x8FDB;&#x7A0B;&#x7684;&#x865A;&#x62DF;&#x5730;&#x5740;&#x7684;&#x3002;&#x7531;&#x4E8E;&#x4E0D;&#x540C;&#x5730;&#x5740;&#x4F1A;&#x6709;&#x4E0D;&#x540C;&#x7684;&#x7528;&#x9014;&#xFF0C;&#x4E8E;&#x662F;&#x4F1A;&#x6709;&#x865A;&#x62DF;&#x5730;&#x5740;&#x8282;&#x70B9;(<code>vmnode</code>)&#x6765;&#x7BA1;&#x7406;
&#x4E0D;&#x540C;&#x7528;&#x6CD5;&#x7684;&#x5730;&#x5740;&#x3002;</p>
<h2 id="&#x4E8C;&#x3001;&#x539F;&#x7406;">&#x4E8C;&#x3001;&#x539F;&#x7406;</h2>
<p>&#x8FDB;&#x7A0B;&#x5730;&#x5740;&#x7A7A;&#x95F4;&#x7684;&#x7BA1;&#x7406;&#x4F7F;&#x7528;&#x94FE;&#x8868;&#x6765;&#x7EF4;&#x62A4;&#x6BCF;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#xFF0C;&#x8282;&#x70B9;&#x662F;&#x6839;&#x636E;&#x865A;&#x62DF;&#x5730;&#x5740;&#x7684;&#x503C;&#x6765;&#x8FDB;&#x884C;&#x7EBF;&#x6027;&#x6392;&#x5E8F;&#xFF0C;&#x4F4E;&#x5730;&#x5740;&#x5728;&#x94FE;&#x8868;&#x7684;&#x5F00;&#x5934;&#xFF0C;&#x9AD8;&#x5730;&#x5740;&#x5728;&#x94FE;&#x8868;&#x7684;&#x7ED3;&#x5C3E;&#x3002;
&#x5730;&#x5740;&#x7A7A;&#x95F4;&#x901A;&#x8FC7;&#x6620;&#x5C04;&#x548C;&#x89E3;&#x9664;&#x6620;&#x5C04;&#x6765;&#x8FDB;&#x884C;&#x7BA1;&#x7406;&#xFF0C;&#x7C7B;&#x4F3C;&#x4E8E;&#x5206;&#x914D;&#x548C;&#x91CA;&#x653E;&#x7684;&#x64CD;&#x4F5C;&#x3002;</p>
<p>&#x6620;&#x5C04;&#x67D0;&#x6BB5;&#x7A7A;&#x95F4;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4F1A;&#x5148;&#x68C0;&#x6D4B;&#x5730;&#x5740;&#x662F;&#x5426;&#x88AB;&#x4F7F;&#x7528;&#xFF0C;&#x5982;&#x679C;&#x5DF2;&#x7ECF;&#x88AB;&#x4F7F;&#x7528;&#x4E86;&#xFF0C;&#x5C31;&#x4E0D;&#x80FD;&#x76F4;&#x63A5;&#x4F7F;&#x7528;&#x8FD9;&#x5757;&#x5730;&#x5740;&#x3002;&#x6CA1;&#x6709;&#x88AB;&#x4F7F;&#x7528;&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x5728;&#x5730;&#x5740;&#x7A7A;&#x95F4;&#x4E2D;&#x6DFB;&#x52A0;&#x4E00;&#x4E2A;
<code>vmnode</code>&#xFF0C;&#x8282;&#x70B9;&#x8BB0;&#x5F55;&#x4E86;&#x5730;&#x5740;&#x7684;&#x4FE1;&#x606F;&#x4EE5;&#x53CA;&#x8FD9;&#x6BB5;&#x5730;&#x5740;&#x7684;&#x5C5E;&#x6027;&#x3002;
&#x503C;&#x5F97;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x6620;&#x5C04;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x8FD8;&#x4F1A;&#x53BB;&#x5BF9;&#x5185;&#x5B58;&#x8FDB;&#x884C;&#x7269;&#x7406;&#x5185;&#x5B58;&#x6620;&#x5C04;&#xFF0C;&#x53EA;&#x6709;&#x6620;&#x5C04;&#x540E;&#xFF0C;&#x8FDB;&#x7A0B;&#x624D;&#x80FD;&#x8BBF;&#x95EE;&#x8BE5;&#x5730;&#x5740;&#x3002;</p>
<p>&#x89E3;&#x9664;&#x6620;&#x5C04;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4F1A;&#x5148;&#x5224;&#x65AD;&#x8BE5;&#x5730;&#x5740;&#x662F;&#x5426;&#x6620;&#x5C04;&#xFF0C;&#x5DF2;&#x7ECF;&#x6620;&#x5C04;&#x624D;&#x80FD;&#x89E3;&#x9664;&#x3002;&#x4F1A;&#x5148;&#x89E3;&#x9664;&#x7269;&#x7406;&#x5185;&#x5B58;&#x6620;&#x5C04;&#xFF0C;&#x7136;&#x540E;&#x518D;&#x628A; <code>vmnode</code> &#x5220;&#x9664;&#x3002;</p>
<h2 id="&#x4E09;&#x3001;&#x6846;&#x67B6;&#x56FE;">&#x4E09;&#x3001;&#x6846;&#x67B6;&#x56FE;</h2>
<p><img src="figures/vmspace.png" alt="&#x6846;&#x67B6;&#x56FE;"></p>
<h2 id="&#x56DB;&#x3001;&#x63A5;&#x53E3;">&#x56DB;&#x3001;&#x63A5;&#x53E3;</h2>
<p>&#x865A;&#x62DF;&#x5730;&#x5740;&#x5728;&#x6620;&#x5C04;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x9700;&#x8981;&#x6307;&#x5B9A;&#x5BF9;&#x5E94;&#x7684;&#x5730;&#x5740;&#x7A7A;&#x95F4;&#xFF0C;&#x7136;&#x540E;&#x5C31;&#x662F;&#x4F20;&#x5165;&#x4E00;&#x4E2A;&#x60F3;&#x8981;&#x6620;&#x5C04;&#x7684;&#x5730;&#x5740;&#xFF0C;&#x5982;&#x679C;&#x4E3A;0&#xFF0C;&#x90A3;&#x4E48;&#x5C31;&#x4F1A;&#x81EA;&#x52A8;&#x5206;&#x914D;&#x4E00;&#x4E2A;&#x5730;&#x5740;&#x3002;
&#x4EE5;&#x53CA;&#x8FD9;&#x4E2A;&#x5730;&#x5740;&#x5BF9;&#x5E94;&#x7684;&#x5185;&#x5B58;&#x5927;&#x5C0F;&#xFF0C;&#x5185;&#x5B58;&#x8282;&#x70B9;&#x7684;&#x5C5E;&#x6027;&#xFF0C;&#x5DF2;&#x7ECF;&#x4E00;&#x4E9B;&#x6269;&#x5C55;&#x7684;&#x6807;&#x5FD7;&#x3002;</p>
<p>&#x5728;&#x89E3;&#x6790; <code>elf</code> &#x683C;&#x5F0F;&#x7684;&#x53EF;&#x6267;&#x884C;&#x7A0B;&#x5E8F;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x9700;&#x8981;&#x6620;&#x5C04;&#x4E00;&#x6BB5;&#x5185;&#x5B58;&#x6765;&#x50A8;&#x5B58;&#x4EE3;&#x7801;&#x548C;&#x6570;&#x636E;&#xFF0C;&#x5C31;&#x4F1A;&#x7528;&#x5230;&#x6620;&#x5C04;&#x529F;&#x80FD;&#x3002;
&#x4EE5;&#x53CA;&#x5728;&#x505A;&#x8FDB;&#x7A0B;&#x7684;&#x5806;&#x5206;&#x914D;&#x548C;&#x6808;&#x6269;&#x5C55;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x90FD;&#x4F1A;&#x4F7F;&#x7528;&#x5230;&#x3002;</p>
<pre><code class="lang-c"><span class="hljs-function">NX_Error <span class="hljs-title">NX_VmspaceMap</span><span class="hljs-params">(NX_Vmspace *space,
    NX_Addr addr,
    NX_Size size,
    NX_U32 attr,
    NX_U32 flags,
    <span class="hljs-keyword">void</span> **outAddr)</span></span>;

<span class="hljs-comment">/* &#x6307;&#x5B9A;&#x4E86;&#x865A;&#x62DF;&#x5730;&#x5740;&#x9700;&#x8981;&#x6620;&#x5C04;&#x5230;&#x7684;&#x7269;&#x7406;&#x5730;&#x5740;&#xFF0C;&#x6620;&#x5C04;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x5C31;&#x628A;&#x865A;&#x62DF;&#x5730;&#x5740;&#x6620;&#x5C04;&#x5230;&#x8BE5;&#x7269;&#x7406;&#x5730;&#x5740;&#xFF08;&#x672A;&#x6765;&#x505A;&#x5171;&#x4EAB;&#x5185;&#x5B58;&#x7684;&#x65F6;&#x5019;&#x4F1A;&#x7528;&#x5230;&#xFF09; */</span>
<span class="hljs-function">NX_Error <span class="hljs-title">NX_VmspaceMapWithPhy</span><span class="hljs-params">(NX_Vmspace *space,
    NX_Addr vaddr,
    NX_Addr paddr,
    NX_Size size,
    NX_U32 attr,
    NX_U32 flags,
    <span class="hljs-keyword">void</span> **outAddr)</span></span>;
</code></pre>
<p>&#x89E3;&#x9664;&#x5730;&#x5740;&#x6620;&#x5C04;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x9700;&#x8981;&#x5236;&#x5B9A;&#x865A;&#x62DF;&#x5730;&#x5740;&#x548C;&#x5185;&#x5B58;&#x5927;&#x5C0F;&#xFF0C;&#x5982;&#x679C;&#x5728;&#x5DF2;&#x7ECF;&#x6620;&#x5C04;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#x4E2D;&#x5339;&#x914D;&#x5230;<code>vmnode</code>&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x5C06;&#x5176;&#x89E3;&#x9664;&#x6620;&#x5C04;&#xFF0C;&#x5E76;&#x91CA;&#x653E;&#x5176;
&#x6620;&#x5C04;&#x7684;&#x7269;&#x7406;&#x5185;&#x5B58;&#x3002;</p>
<pre><code class="lang-c"><span class="hljs-function">NX_Error <span class="hljs-title">NX_VmspaceUnmap</span><span class="hljs-params">(NX_Vmspace *space, NX_Addr addr, NX_Size size)</span></span>;
</code></pre>

                                
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